Pre-Collision System

PRE-COLLISION SYSTEM:

DTC U1101 - Lost Communication with Distance Control ECU

DESCRIPTION

The seat belt control ECU receives signals from the skid control ECU, center airbag sensor assembly, and distance control ECU via CAN communication system.
The distance control ECU receives signals from the ECM via CAN communication system.





HINT: When two or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.

INSPECTION PROCEDURE

NOTE: When the distance control ECU and/or ECM are replaced with a new one, initialization must be performed Installation.
HINT: This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM
(a) Refer to HOW TO PROCEED WITH TROUBLESHOOTING How to Proceed With Troubleshooting.
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